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  Database Administration: Over 7.6 years of comprehensive experience as a Senior Cloud Database Administrator | Developer proficient in managing relational and NoSQL databases including MySQL, MariaDB, PostgreSQL, MSSQL, MongoDB, Dgraph, AWS Aurora, and Redis. Expertise in provisioning instances, both clustered and non-clustered configurations, and performing database installations, configurations, upgrades, and migrations.
  Database Migration: Proficient in migrating databases from on-premise to cloud environments and conducting cross-region migrations in AWS. Expertise in migration cross database (e.g., MySQL to PostgreSQL, MSSQL to PostgreSQL).
  Backup and Disaster Recovery: Automated regular backups and implemented disaster recovery procedures to minimize downtime in case of failures.
  Database Clustering and Replication: Hands-on experience with MySQL/MariaDB Clustering (InnoDB Cluster, Galera Cluster), PostgreSQL Clustering (Patroni, Repmgr), MySQL replication strategies (Multi-Master, Chain, Master-Master, Master-Slave), MongoDB Replica Set & Sharding, and MSSQL (AlwaysON, Replication, Mirroring, Log Shipping).
  Cloud Database Management: Expertise in setting up, managing, and monitoring cloud databases (Aurora Engines), ensuring scalability and performance optimization aligned with business requirements. Expertise in working with multiple cloud services (RDS|DMS|EC2|Route53|Cloud Watch Alarms|SNS).
  Infrastructure and Tools: Proficient in Kubernetes, Docker, and Ansible with experience in YAML scripting. Configured PostgreSQL connection pooling with PgBouncer and implemented load balancing with HAProxy. Managed monitoring tools such as SolarWinds DPM, PgBadger, Grafana, Icinga2, Nagios, and OPS Manager for performance enhancement.
  Backup and Recovery Solutions: Extensive knowledge of various backup strategies (e.g., Full, Differential, Transactional Log, Logical, Physical) across SQL Server, MySQL, MariaDB, PostgreSQL, and MongoDB. Hands-on experience with third-party utilities like Percona XtraBackup, PgBackRest, Barman, and Percona Backup/OPS Manager.
  Performance Optimization: Strong expertise in performance tuning, query optimization, and understanding query execution plans across MySQL, MariaDB, PostgreSQL, SQL Server, and MongoDB. Proven ability to identify and resolve deadlock, locking, and blocking events, collaborating effectively with application teams.
  Security and Compliance: Implemented robust security measures and encryption protocols for sensitive data, including row-level and column-level security implementations. Proficient in creating and managing database logins, users, groups, roles, and profiles, ensuring adherence to security policies and standards.
  Database Deployments: Experienced in making DDL and DML changes on heavy transactional tables without downtime, collaborating proactively with application developers for seamless database deployments. Skilled in enforcing and documenting database policies, procedures, and standards to maintain data integrity and security.
  Capacity Planning and Forecasting: Expertise in assessing current and future capacity needs of databases, analyzing growth trends, resource utilization patterns, and application requirements to ensure optimal performance and scalability.
  Automation: Automated many day-to-day activities (writing scripts in bash, batch, AWS CLI, Ansible) for traditional database activities RDS database Automatic Upgrade/Downgrade | Scheduling Backups |Scheduling Maintenance Plans | Log Archival | Database Status | Database Locking | Replication Failure | Critical Event Failure | Database Performance and Disk/CPU/Memory Usage | Slow Queries on prime and cloud environment.
  Additional Skills: Strong understanding of database design, data modeling, and implementing data management solutions. Dedicated to staying updated with emerging technologies and advancements in database administration.
  Redis Expertise: Skilled in Redis Data Security and Access Controls (ACLs), implementing automated scaling, and failover mechanisms using Redis Cluster for high availability. Developed monitoring dashboards using Prometheus, Grafana, and RedisInsight to track metrics and identify potential issues.
  Database Documentation: Determine, enforce and document database policies, procedures and standards.
  Database Management: High-performing professional with extensive experience managing large-scale, complex databases. Skilled in SQL and multiple databases management systems.
  Ready to help team achieve company goals. Complex problem-solver with analytical and driven mindset. Dedicated to achieving demanding administrative objectives according to tight schedules. Detail-oriented team player with strong organizational skills. Ability to handle multiple projects simultaneously with a high degree of accuracy. Seeking a position to leverage that offers professional challenges utilizing interpersonal skills, excellent time management and problem-solving skills.

Driven Database Architect with [Number] years of experience in full lifecycle development. Goal-oriented team player succeeds working with various colleagues and clients by maintaining communication. Motivated with keen analytical, problem-solving and task management abilities.

Highly motivated and goal-driven software engineer passionate about creating impactful, scalable solutions. Strong foundation in software development and programming, eager to contribute skills and collaborate effectively across teams to ensure success at every stage - design, development, testing, and implementation. Specializes in building robust applications and thrives in dynamic environments where adaptability is key. Focuses on teamwork, driving projects to completion, and continuously improving processes to deliver high-quality results. Proficient in a range of programming languages, frameworks, and tools, bringing both technical expertise and a commitment to fostering a positive, productive work environment.

Technology professional with 16+ years’ experience in enterprise and solution architecture, BSS/OSS platforms, cloud technologies, and digital transformation. Skilled in architecture design, integration, cloud fundamentals, and agile delivery, with a strong focus on building secure, scalable, and future‑ready systems that support organisational growth.
Experienced in the telecommunications and ICT industry, working across complex environments to deliver high‑quality solutions, improve customer outcomes, and support cross‑functional teams. Passionate about using technology to streamline operations, modernise systems, and enable sustainable digital transformation that aligns with business and community needs.

My career objective is to work in a highly stimulating, motivating and cooperative environment in order 
to attain self and organizational growth and success. 
  Currently working in Freecharge Payment Technologies Pvt Ltd., Gurgaon as Associate Director. 
 Manages Merchant platform including Payments, Settlement and Onboarding. 
 Domain Expertise of Digital Payments - Wallet, UPI, PG, EMI, Digital Loan, Settlements 
 B. Tech. with Honors (Computer Science & Engineering.) from UIET, Kurukshetra University. 
 Excellent Analytical, Technical and Communication skills.

Krishna Narayanasamy

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Bachelors - Computer Science with a Cybersecurity Specialization

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Bachelors - Computer Science with a Cybersecurity Specialization

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